As per my understanding, you would like to get the temperature at any point of interest in the steady state thermal model and display it in the command window.
This can be accomplished by using MATLAB's "interpolateTemperature" function. Below is a version of the code that meets the requirement.
%Previous code
thermalmodel = createpde("thermal","steadystate");
R2= [3,4,-15,15,15,-15,-15,-15,15,15]';
geom=[R2]
g=decsg(geom)
model= createpde
geometryFromEdges(thermalmodel,g);
pdegplot(thermalmodel,"EdgeLabels","on")
xlim([-20 20])
axis equal
thermalProperties(thermalmodel,"ThermalConductivity",1);
thermalBC(thermalmodel,"Edge",1,"Temperature",100);
thermalBC(thermalmodel,"Edge",2,"Temperature",100);
thermalBC(thermalmodel,"Edge",3,"Temperature",100);
thermalBC(thermalmodel,"Edge",4,"Temperature",400);
generateMesh(thermalmodel);
figure
pdemesh(thermalmodel)
title("Mesh with Quadratic Triangular Elements")
thermalresults = solve(thermalmodel)
pdeplot(thermalresults.Mesh,XYData=thermalresults.Temperature,ColorMap="jet")
title("Temperature In The Plate, Steady State Solution")
xlabel("X-coordinate, meters")
ylabel("Y-coordinate, meters")
axis equal
%%%%% Code for getting the temperature at the given point %%%%%
% Define the point of interest
x = -10;
y = 0;
% Interpolate the temperature at the point of interest
temperatureAtPoint = interpolateTemperature(thermalresults, x, y);
% Display the temperature in the Command Window
fprintf('The temperature at (x = %.1f, y = %.1f) is %.2f degrees.\n', x, y, temperatureAtPoint);
You can also run the following command in the MATLAB Command Window to get the temperature at the required point:
>> interpolateTemperature(thermalresults, -10, 0)
For further information on MATLAB's "interpolateTemperature" function, refer to the following MathWorks documentation link:
I hope this is beneficial!
